Near enough to touch: how Gaia and other tools reveal the hidden population of nearby black holes.
Black holes shape stars by gravity; we detect them via their effects rather than light.
Gaia maps stellar motions to reveal unseen, massive companions through astrometric wobbles.
Cygnus X-1, V Puppis, and the Unicorn illustrate how nearby quenched black holes hide in plain sight.
Most stellar-mass black holes don’t glow; microlensing and statistics suggest many nearby dwellers.
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